Steam-shovel.



G. E. TURNER.

STEAM SHOVBL. APPLICATION rum) MAR. 25, 1908.

Patented May 18, 1909.

11 SHEBTS-8HEET 1.

wuenlfoz G. E. TURNER.

STEAM SHOVEL.

APPLICATION FILED MAR. 2a, 1908.

I 922,213. Patented May 18, 1909.

. 11 SHEETS-SHEET 2.

avwemtor W3 b1 use:

THE NORRIS PETERS co., wnsmuarnn. n. c.

G. E. TURNER.

Patented May 18, 1909.

11 SHEETS-SHEET 3.

gluwutoz QM In no M THE NORRIS PETERS 00.. wnsnuvcmu, n. c.

G. E. TURNER.

STEAM SHOVEL.

APPLICATION nun MAR. 2a, 1908.

Patented May 18, 1909.

11 SHEETS-SHEET 4.

5. QoKA/A/ 1n: Norms PETERS 00., WASHINGTON, n. c

G. E. TURNER.

STEAM SEOVEL.

Patented May 18, 1909.

11 SHEETS-SHEET 5.

G.B.TURNER. STEAM SHOVEL.

APPLICATION FILED MAR.Z5, 1908 Patented May 18, 1909.

11 SHEETS-SHEET 7 atto'amug 4 ms NORRIS PEYERS co., WASHINGTON, B4 cG.EV.TURNER.

STEAM SHOVBL.

APPLIOATION FILED MAR.25, 190s.

Patented May 18, 1909.

11 SHEETS-SHEET 8,

z o t 1 1 e v n 1 ad attozmu d' G. E. TURNER; STEAM SHOVEL.

0m 0 9 11 00 1 y m d m n .m a P um O 9 1 5w 2 L A M D E L T. P N o I T A0 I L P P A 11 SHEETS-SHEET 9.

Envemtoz vac NORRIS PETERS 50., wnsmuamu, m c.

G.E; TURNBR.

STEAM SHOVEL.

APPLICATION FILED MAR.25, 1908.

Patented May 18, 1909.-

- l1 SHEETS-SHBET 10.

wit" mo es G. E. TURNER.

STEAM SHOVEL. APPLIOATION FILED 11113.25, 190s.

Patenfied May 18, 1909.

11 SHEETS-SHEET 11.

Smuenl'oz THE NORRIS PETERS cc., wnsnmorcm. D. c,

UNTTED TATE OFFTOE.

GEORGE E. TURNER, OF BELLEFONTAINE, OHIO, ASSIGNOR TO THE BELLEFONTAINEFOUNDRY & MACHINE COMPANY, OF BELLEFONTAINE, OHIO, A CORPORATION OFOHIO.

STEAM-SHOVEL.

To all whom it may concern:

Be it known that I, GEORGE E. TURNER, a citizen of the United States,residing at Bellefontainc, in the county of Logan and State of Ohio,have invented certain new and useful Improvements in Steam-Shovels, ofwhich the following is a specification.

This invention relates to improvements in steam shovels.

The object of the invention is to provide a machine of large capacityfor stripping the earth from coal veins rock, ore, etc., the particularobject being to provide a machine of this character which will not onlyremove the earth but which will also convey the earth to a suitabledumping point which will be sufiiciently removed from the bank side asto be out of the way of the operation of removing the coal, rock or oreafter the earth has been stripped; it being the intention to displace bythis machine the usual train of dumping cars which are ordinarily usedto convey the earth from the point of operation to a suitable dumpingground.

A further object of my invention is to improve the construction of amachine of this character to adapt it to the work to be performed.

The invention consists in the various constructions hereinafterdescribed and set forth in the claims.

In the accompanying drawings, Figure 1 is a front elevation of a machineembodying my invention. Fig. 2 is a side elevation of the same, the viewbeing one looking toward the left of Fig. 1, it being what is known asthe bank side of the machine. Fig. 3 is a side elevation of the mainhopper with its movable bottom or feeder and the auxiliary hopper of themain carrier, looking in the same direction as in Fig. 2. Fig. 4 is afront elevation of the same. Fig. 5' is a detail of the clutch mechanismfor the driving pulley of the movable bottom or feeder of the mainhopper. Fig. 6 is a side view of the main carrier looking from the frontof the machine, showing the mechanism for driving the belt and.tightening and loosening the tension thereon. Fig. 7 is a top plan Viewof the tensioning mechanism for the main carrier belt. Fig. 8 is also aside elevation of the main carrier showing a modified form of tensioningmechanism for the belt. Figs. 9. 10 and 11 are details of some of theparts of the driving and tensioning mechanism for Specification ofLetters Patent.

Application filed March 25, 1908.

Patented May 18, 1909.

Serial No. 423,213.

the main carrier belt. Fig. 12 is a rear end view of the device, andFig. 13 is an enlarged similar view of a portion of the same. Fig. 1% isa sect-ion on the line 11 and Fig. 15 is a section on the line 22 ofFig. 18. Fig. 16 is a sectional view of the main hopper the sectionbeing on the line 66 of the Fig. 3. Fig. 17 is a front elevation of oneof the supporting trucks. Fig. 18 is a top plan view of the same. Fig.19 is a section on the line 1--l of Fig. 18: Figs. 20 and 21 are twoviews illustrating the system for moving the machine forward bythedipper, Fig. 20 being a top plan view, and Fig. 21 a side elevation.

Like parts are represented by similar characters of reference in theaccompanying drawings.

As illustrated in the drawings only such parts of the operatingmechanism has been shown which performs the operation of digging andshoveling as has been deemed necessary, all of this mechanism such asthe boom swinging device, and the devices for hoistening and backing thedipper being the usual well known mechanism employed in this class ofmachines. This mechanism is mounted upon a main frame a a a in the usualway, said frame being supported by four trucks, 6.

0 represents the boom mounted upon the usual turn-table, c operated bythe chain or cable, 0, from the ordinary power winding drums; the outerend of the boom being supported from the usual A-frame, 0 Thisturn-table carries the excavating device, 0 which, in the present case,is shown as of the dipper type of excavator; this dipper being operatedby the usual devices such as the hoisting and backing cable, 0*,operated from the usual power drums (not shown) and having the usualmeans for operating its handle through the boom, such as the crowdingengine, 0

Located on the bank side of the machine, at the forward part of theframe, a, is a hopper (Z into which the dipper is adapted to dump. Thishopper is provided with an incline side (shown best in Fig. 16) and haslocated in the bottom thereof an incline feeder or carrier (Z thedirection of travel of which is toward the rear of the machine, so todeposit the earth into a small auxiliary hopper, 0, located above thelower end of a long inclined conveyer f. The feeder mounted upon theshaft (Z in such a way as to permit it to slip wheiiev'er an undue loadis deposited upon the feeder as will be described farther on. The shaftCV is connected to the shaft'd which carries the sprockets a through themedium of the beveled pinion d, and a beveled gear d coi'inectcd to therespective shafts.

As before stated the pulley (1 is connected to the shaft (Z by africtionclutch in such a way that the pulley can be not only thrown into and outof engagement with said shaft at the will of the operator but will alsobe allowed to slip on the shaft whenever an undue load such as a largeboulder or anything which would be liable to injure the carriers, isdeposited in the hopper. In Fig. 5 T have illustrated a well known formof such a clutch. f represents the outer casing secured at one end tothe pulley d and having a removable cap f at the other end. f representsfriction shoes or plates adapted to be thrown into and out of frictionalengagement with the casing and its cap through the medium of the togglesf and lever, f pivoted at to he cone f and connected to the toggles bythe link the outer ends of the levers, (one lever only being shown)being connected with a spring f By moving the cone in and out throughany suitable means the plates or shoes will be engaged or disengaged andthe springs help to sustain the frictional engagement between the parts.Means are provided for adjusting these springs so that the clutch can beregulated to'slip when a certain power is exceeded sothat any dangerresulting from the deposit into the hopper of anything which wouldbeliable to injure the carrier is thus obviated.

The main carrier, f, consists of a long arm or frame having a series offriction and guide rollers, f over which passes the endless belt, f thisframe or arm being pivoted at f to a suitable frame or car which can bearm f. ,The belt, f passesaround a driving pulley mounted in fixedbearings connected. to the arm, and thence around an ldler pulley f. Thedriving pulley, f is driven from any suitable source of power in the,machine, preferably from the engine f and belt f passing around thepulley, f, connected to the shaft f located in suitable bearings on thearm, f, and having a pinion, f engaging with a gear, f connected to saiddriving pulley or to its shaft f The pulley, f, is preferably connectedto the shaft, f, by a friction clutch to permit the pulley to slipthereon under a certain load on the carrier, this friction pulley beingconstructed the same as the one, d, shown in Fig. 5.

The idler pulley, f, is movable and has connected therewith means forautomatically keepinga certain tension upon the belt f. The pulley, f,is mounted in a sliding frame, f", which is adapted to slide inguide-ways, f, on each side of the frame or arm f. Connected to thesliding frame f", are two cables, f passing around a series of pulleys fand also about two pulleys, f which are connected to piston rod, f, ofthe steam cylinder f The supply pipe f, has a shut-off valve, f and alsoa pressure reducing valve, f, by means'of which any desired and constantpressure may be maintained irrespective of any pressure of the steamsupply. 7 i

In the operation of the device the reducing valve is set to maintain theleast pressure in the cylinder that will hold the belt tight enough toprevent slipping on the driving pulley, after which the opening andclosing of the shut-off valve puts on or takes oh the tension on thebelt, so that the proper ten sion on the belt is automaticallymaintained irrespective of any stretching or shrinkage of the belt fromany cause.

In F S, 9, and 10 I have shown a modification in the devices forsecuring the proper tension on the belt f in which weights are employedinstead of the cylinder. In this case the cables, f pass over thepulleys, f,

one on each side of the arm or frame f and thence over the pulleys, f,located on the frame work above the arm f, and are connected to theweights f. Also connected to these weights is'a cable, f, which passesabout the pulley, f, upon the frame work and thence to the drum, f whichis loose on the shaft, f, of the driving pulley Keyed to the shaft, is ahub f, carrying a pawl, f, adapted to engage with internal teeth on thedrum, f, when the shaft, f is turned backwardly, said pawl runningloosely over these teeth in the forward rotation of the shaft. hen it isdesired to relieve the tension on the main belt, f, the shaft, f 'isbacked thus running the weights, f, up and relieving the tension on thecables f and hence on the belt. It is obvious that any ordinary clutchdevice may .be used for the purpose of rotating the shaft, f through themedium of the pulley, 1 raised a short distance the tension will berelieved and the belt allowed to slip on the pulley.

In a machine of this kind where the operating parts are necessarily veryheavy and must be all mounted upon a single frame which must be movedover very uneven ground, I have found it necessary to mount the frame onthe supporting trucks in such a way that the frame will have more orless flexibility, the trucks themselves being constructed in a way topermit further flexibility in the movement of the machine over theground in a way which will be described hereinafter. Extending acrossthe lower part of the rear end of the frame are two transverse framepieces, a a located a suitable distance apart. Located between theseframe pieces, a a and supported at each end by the trucks is a bolster,a Extending across the respective frame pieces, a a midway in theirlength is a supporting pin, (4*, wiich has a bearing upon the bolster,a. The bolster, a is strengthened by the truss rod, (4 anchored at eachend in the bolster as at a and extending down through and beneath thebolster, a block, (4 being preferably interposed between the bolster andthe truss rod at the center. The bolster is preferably constructed oftwo beams, (0 secured together at their centers by a series of plates,(LS, which plates also form the bearing proper for the pin (4*, aspacing block or plank, a, being inserted at this point between thebeams, (4 and the inner plates a At the respective ends of both theframe pieces, a a and the bolster a are provided wear ing plates, a a,which take up the wear between the parts at these points, a spacingblock, a, between the respective parts of the bolster being alsoinserted at these points.

In order to provide for further flexibility in the movement of the frameI have constructed each of the trucks in such a manner that the truckframes will be swiveled upon one of the axles of the truck. Each of thetrucks is made up of two longitudinal I-beams 5 connected together bytransverse channel bars 6 The axle 5 is supported at each end by thecarrier wheels, 5 which run loosely thereon. Supported on the axle arestraps, 7), one at each end, and supported by these straps are twotransverse channel bars 7), the lower ends of the straps being outturnedso as to provide a support for the bars as shown, said bars being cutaway at the points where the straps turn under. Located. at the centerof the channel bars, Z), is a pin, If, upon which rests the transversechannel bars, Z2 of the truck frame. To maintain the parts in position Ihave secured to the channel bars, 7), plates, 6 and to the transversebars, 6 plates, 7), which plates are provided with openings throughwhich extends the pin, If, these plates being adapted to hold the partsfrom to each other.

lateral movement. I have also secured to each of the longitudinalI-beams at each side, frame parts, 5 which inclose the channel bars, I),and are secured together at the bottom by a bolt or rod, 7), these frameparts, 6 being adapted to hold the parts against longitudinal movementin reference The truck frame proper is rigidly supported upon the otheraxle in any suitable manner. The forward part of the main frame of themachine and each end of the bolster, a is supported upon theserespective trucks at a point in the center thereof as indicated at 6this supporting seat, Z), being in the nature of a rounded socket toreceive the rounded projection on. the frame part or bolster so as topermit a more or less free movement of the frame on the trucks.

In Figs. 20 and 21 l have shown a system of moving the machine forwardthrough the medium of the dipper 0 9 represents a cable passing over thepulley in the block 9 which is connected to the dipper, thence about thepulleys in the blocks, 9 connected respectively to the rear trucks,thence about the pulleys in the blocks, which may be anchored at anysuitable point, as for instance, to the temporary track, and thence backto the pulley blocks, 9 to which the respective ends of the cables arecon nected. By dropping the dipper down to its lower-most position asshown in Fig. 21 and then raising it by the hoisting drum the machinecan be readily moved forward. This mode of moving the machine is madenecessary by the great weight of the machine, it raving been found to beentirely impracticable to apply the power direct to the axles of thetrucks or to the wheels. The same system may be emploved for moving themachine rearward, by connecting two of the pulley blocks to front trucksand anchoring the other two blocks to a point in the rear; the cable 9being passed about the anchor pulleys, thence about the pulleysconnected to the front trucks and thence back and connected again to theanchored pulleys.

Having thus described my invention, I claim 1. In a machine of thecharacter described, a main frame, an excavator and means for operatingsame, a hopper to receive the dumpings from said excavator, acontinuously moving feeder in proximity to said hopper, and a conveyerlocated at the discharge end of said feeder, all of said parts beingsupported on said main frame, substantially as specified.

2. In a machine of the character described, a. main frame, an excavatorand its operating mechanism, a continuously moving feeder located in thepath of movement of said excavator, a continuously moving conveyerlocatedat the discharge end of said feeder,

and means for guiding the dumpings from said excavator onto said feederand from thence onto said conveyer, all of said parts being supported onsaid main frame, substantially as specified.

3. In a machine of the character described, an excavator and itsoperating mechanism, a main hopper having a continuously moving feeder,a conveyer located at the dis charge end of said feeder, mechanism foroperating said feeder, and means for disengaging said mechanism fromsaid feeder under a certain load on said feeder,'sub-v stantially asspecified.

f. In a machine of the character described, an excavator and itsoperating mechanism, a main hopper having a movable feeder therein, aconveyer located at the discharge end of said feeder, driving mechanismfor said feeder and means for disconnecting said driving mechanism atthe Will of the operator and 7 also for disengaging said mechanism fromsaid feeder under a certain load on said feeder, substantially as andfor the purpose specified.

5. In a machine of the character described, a main frame, an excavatorand its operating mechanism, a main hopper located in the path ofmovement of said excavator, a continuously moving inclined feeder insaid hopper, a continuously moving long conveyer, the loWer end of Whichis at the (lischarge end of said feeder, and an auxiliary hopper betweensaid feeder and conveyer, all of said parts being supported by said mainframe, substantially as specified.

6. In a machine of the character described, a main frame, an excavatorand its operating mechanism, a hopper located in the path of movement ofsaid excavator, a continuously rearwardly moving feeder in said hopper,a continuously moving conveyer located at the discharge end of saidfeeder, said conveyer extending at right angles to said feeder, all ofsaid parts being supported on said main frame, substantially asspecified.

7. In a machine of the character described, a main frame, an excavatorand its operating mechanism supported'on said frame, a mainhoppersupported on said frame on the bank side thereof and in the path ofmovement of said excavator, a continuously rear- Wardly moving feeder insaid hopper, and a continuously moving conveyer located on said frameand extending laterally there from in a direction away from the bankside thereof, the lower end of said conveyer being under the dischargeend of said feeder, substantially as specified.

8. In a machine of the character described, an excavator and itsoperating mechai" n, a conveyer adapted to receive the dumpmgs from saidexcavator, sa l conveyer comprising a continuously 1110K. belt means fordriving said belt, and means for autoinatically applying and maintaininga certain tension on said belt, substantially as and for the purposespecified.

9. In a machine of the character described, an excavator and itsoperating mechanism, a conveyor adapted to receive the dumpings fromsaid excavator, said conveyer comprising a continuously moving belt,means for driving said belt, a pulley about Which said belt passes, saidpulley being located in aframe having guide Ways, and power operatedmeans for moving said pulley in said guide Ways a suitable distanceandmaintaining it in position to put and keep a uniform tension on saidbelt, and means for renoving said tension, substantially as and for thepurpose specified.

10. In a machine of the character described, an excavator and itsoperating mechanism, a conveyor to receive and convey the dumpings fromsaid excavator, said conveyer comprising an endless belt, devices fordriving said belt with means for disconnecting same under a certain loadon said belt, means for maintaining a uniform tension on said belt, andmeans for releasing said tension, substantially as specified.

11. In a machine of the character de. scribed, an excavator and itsoperating mechanism, a conveyer comprising an endless belt, poweroperating devices for applying a uniform tension to said belt, and meansfor releasing said devices to remove said tension, substantially as andfor the purpose specified.

12. In a machine of the character described, a main frame, an excavatorand its operating mechanism mounted on said main frame, carrying trucksfor said frame, and connections from said excavator operating mechanismto said trucks for moving said frame, substantially as specified.

13.111 a machine of the character described, a main frame, an excavatorand its ner of said frame, pulleys connected to tWo of said trucks,anchored pulleys, a pulley connected to said excavator operatingmechanism, and a cable passing about the respective pulleys,substantially as specified.

14. In a machine of the character described, a main frame, an excavatorand means for operating the same, a hopper to receive the dumpings fromsaid excavator, a conveyer, and means for gradually discharging thecontents of said hopper onto said conveyer, all of said parts beingsupported on said main frame, substantially as specified. V

15. In a machine of the character described, a main frame, an excavatorand its operatin mechanism supported on said main frame, a main hopperto receive the dumpings from said excavator, a continuously frame, a mamhopper on said frame, an

auxiliary hopper above the lower end of said conveyer located inproximity to said 15 main hopper, and means for gradually dischargingthe contents of said main hopper into said auxiliary hopper,substantially as specified.

In testimony whereof, I have hereunto set 20 my hand this 26th day ofOctober, 1907 GEORGE E. TURNER.

lVitnesses .MARY WALL, CHAS. I. WELCH.

